Pigmentation

it is based on the intensity of vu rays as the pigment melanin is purely designed for protection from uv rays is is deffinetey effected by the intensity of the light

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Does UV level increase the rate of pigmentation in skin? ( Stimulation of melanocytes...) Or if the UV level is high enough, ie 4 and above, is pigmentation purely based on time exposure to sunlight if the UV level is 10+. And would this be ...

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However both hypotesis presented here are not mutually exclusive: mammals may have lost their ability to create green pigmentations as a result of it not being an advantegeous trait for them. Reptiles and amphibians don't have green pigmentation either. All mammals, birds, reptiles, ...

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Need oxidase but maybe not if indole +. Any pigmentation, odor?

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... but these microbes are not among the ones you mentioned. Of the bacteria offered, Kocuria rhizophilia (formerly Micrococcus luteus) yellow pigmentation is due to carotenoids the function of which here is not real obvious. Carotenoids do confer some degee of photoresistance and can function ...

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